CN218818839U - Energy-saving electric melting 90-degree elbow pipe fitting - Google Patents
Energy-saving electric melting 90-degree elbow pipe fitting Download PDFInfo
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- CN218818839U CN218818839U CN202320061652.0U CN202320061652U CN218818839U CN 218818839 U CN218818839 U CN 218818839U CN 202320061652 U CN202320061652 U CN 202320061652U CN 218818839 U CN218818839 U CN 218818839U
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Abstract
The application discloses 90 elbow pipe fittings of energy-saving electric smelting relates to return bend technical field, 90 elbow pipe fittings of energy-saving electric smelting include: the electric melting elbow pipe fitting body is provided with a first turning radius which is 1.5-2.5 times of the diameter of the pipe fitting; the electric melting pipe fitting joint assembly is positioned on the electric melting elbow pipe fitting body; the electric heating wire is located on the electric melting elbow pipe fitting body, and the electric heating wire is connected with the electric melting joint component. The technical problems that in the prior art, an electric melting elbow has serious energy loss, stress concentration of a turning included angle and easy cracking and leakage in the working process are solved.
Description
Technical Field
The invention relates to the technical field of bend pipes, in particular to an energy-saving electric melting 90-degree elbow pipe fitting.
Background
The electric melting connection technology of the pipeline system is widely applied to the fields of water supply, heating and energy source transportation due to the characteristics of low cost, good tightness, high connection strength and the like, but the research of reducing resistance and improving transportation efficiency in a pipeline transportation system is always the key point. The traditional electric melting 90-degree elbow has a plurality of problems in the water delivery process under the influence of the length of the pipeline, the shape of the pipeline, components among the pipelines and the like.
The bend has a small bending included angle, so that the resistance loss of the fluid pipeline is high when the direction of the medium changes in the conveying process, and relatively serious energy loss is caused.
Stress concentration at the included angle of the traditional electric melting pipe fitting reduces the strength of the interface of the electric melting pipe fitting, and in the cold and hot water circulation process, the fatigue resistance of the electric melting pipe fitting can be gradually reduced under the long-time cold and hot alternate working environment, so that cracking and leakage are easily caused.
In the prior art, the fused elbow has the technical problems of serious energy loss, stress concentration of a turning included angle and easy cracking and leakage in a working project.
Disclosure of Invention
To the defect among the prior art, this application embodiment provides an energy-saving electric smelting 90 elbow pipe fitting for there is energy loss serious to electric smelting elbow in the in-process of carrying out work among the solution prior art, and the contained angle stress that turns round concentrates, the easy technical problem of fracture seepage. By adjusting the turning radius, the technical effects of reducing the energy loss in the working process and improving the strength of the corner are achieved.
In order to solve the above problem, the application provides an energy-saving 90 elbow pipe fittings of electric smelting, 90 elbow pipe fittings of energy-saving electric smelting include: the electric melting elbow pipe fitting comprises an electric melting elbow pipe fitting body, wherein the electric melting elbow pipe fitting body is provided with a first turning radius, and the first turning radius is 1.5-2.5 times of the diameter of the pipe fitting; the electric melting pipe fitting joint assembly is positioned on the electric melting elbow pipe fitting body; and the electric heating wire is positioned on the electric melting elbow pipe fitting body, and the electric heating wire is connected with the electric melting joint component.
In one possible design, the inlet section length of the electrofusion elbow pipe fitting body is 1-2 times the pipe fitting diameter.
In one possible design, the length of the outlet section of the electrofusion elbow pipe fitting body is 1-2 times the diameter of the pipe fitting.
In one possible design, the length of the inlet section of the electric melting elbow pipe fitting body is 80 mm-160 mm.
In one possible design, the length of the outlet section of the electric melting elbow pipe fitting body is 80 mm-160 mm.
In one possible design, the first turning radius is 1.5 to 2.5 times the pipe diameter.
In one possible design, the electrofusion pipe fitting joint assembly comprises: a first electrofusion pipe fitting joint assembly located at an inlet section of the electrofusion elbow pipe fitting body.
In one possible design, the electrofusion pipe fitting assembly comprises: a second electric melting pipe fitting joint assembly located at an outlet section of the electric melting elbow pipe fitting body.
In one possible design, the electrical heating wire comprises: the first electric heating wire is positioned at the inlet section of the electric melting elbow pipe fitting body.
In one possible design, the electrical heating wire comprises: and the second electric heating wire is positioned at the outlet section of the electric melting elbow pipe fitting body.
One or more technical solutions in the present application have at least one or more of the following technical effects:
the embodiment of this description provides an energy-saving electric smelting 90 elbow pipe fittings, energy-saving electric smelting 90 elbow pipe fittings includes: the electric melting elbow pipe fitting comprises an electric melting elbow pipe fitting body, wherein the electric melting elbow pipe fitting body is provided with a first turning radius, and the first turning radius is 1.5-2.5 times of the diameter of the pipe fitting; the electric melting pipe fitting joint assembly is positioned on the electric melting elbow pipe fitting body; and the electric heating wire is positioned on the electric melting elbow pipe fitting body, and the electric heating wire is connected with the electric melting joint component. Through the turning radius who sets for the electric smelting elbow, solve among the prior art electric smelting elbow and have energy loss serious at the in-process that carries out work, turn contained angle stress concentration, the technical problem of easy fracture seepage realizes reducing the energy loss of working process, improves the technological effect of the intensity of the contained angle department of turning.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. It is obvious that the drawings are some embodiments of the present application, and that for a person skilled in the art, other drawings can be derived from these drawings without inventive effort. In the drawings:
fig. 1 is a schematic structural diagram of an energy-saving electric melting 90-degree elbow pipe fitting provided by the application.
Fig. 2 is a graph showing the correlation between the resistance coefficient and the change of the turning radius of an energy-saving electric melting 90-degree elbow pipe fitting provided by the application.
Description of reference numerals: electric smelting elbow pipe fitting body 1, electric smelting pipe fitting joint component 2, first electric smelting pipe fitting joint component 21, second electric smelting pipe fitting joint component 22, electric heating wire 3, first electric heating wire 31, second electric heating wire 32.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the present application, it is to be understood that the terms "inner," "outer," "upper," "bottom," "front," "back," and the like, when used in the orientation or positional relationship indicated in FIG. 1, are used solely for the purpose of facilitating a description of the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
The application is through providing an energy-saving 90 elbow pipe fittings of electric smelting for there is energy loss serious to solving among the prior art electric smelting elbow at the in-process that carries out work, and the contained angle stress that turns round concentrates, the technical problem of easy fracture seepage.
The technical scheme in the application has the following overall structure: the electric melting elbow pipe fitting comprises an electric melting elbow pipe fitting body 1, wherein the electric melting elbow pipe fitting body 1 is provided with a first turning radius, and the first turning radius is 1.5-2.5 times of the diameter of the pipe fitting; the electric melting pipe fitting joint assembly 2 is positioned on the electric melting elbow pipe fitting body 1; electric heating wire 3, electric heating wire 3 is located on the electric smelting elbow pipe fitting body 1, just electric heating wire 3 with electric smelting joint subassembly 2 is connected.
Example one
As shown in fig. 1, the present application provides an energy-saving 90 ° elbow pipe fitting of electric smelting, 90 ° elbow pipe fitting of electric smelting of energy-saving includes:
the electric melting elbow pipe fitting comprises an electric melting elbow pipe fitting body 1, wherein the electric melting elbow pipe fitting body 1 is provided with a first turning radius, and the first turning radius is 1.5-2.5 times of the diameter of the pipe fitting;
the electric melting pipe fitting joint assembly 2 is positioned on the electric melting elbow pipe fitting body 1;
and the electric heating wire 3 is positioned on the electric melting elbow pipe fitting body 1, and the electric heating wire 3 is connected with the electric melting joint assembly 2.
Particularly, energy-saving 90 elbow pipe fittings of electric smelting are for being applied to the subassembly in the pipe-line system, generally are used for changing the pipeline direction, energy-saving 90 elbow pipe fittings of electric smelting are the electric smelting connection, have with low costs, the leakproofness is good, the high advantage of joint strength, are used for feedwater, heating and energy to carry the field mostly.
The energy-saving electric melting 90-degree elbow pipe fitting comprises an electric melting elbow pipe fitting body 1, an electric melting pipe fitting joint component 2 and an electric heating wire 3.
Wherein, the electric smelting elbow pipe fitting body 1 is the subassembly that includes two sections straight tubes and one section elbow, and wherein, the central line contained angle of two sections straight tubes is 90. The elbow is provided with a first turning radius, and the length of the first turning radius is 1.5-2.5 times of the diameter of the electric melting elbow pipe fitting body 1.
The electric melting pipe fitting joint component 2 can be connected with an electric melting welding machine, and then the component for connecting the energy-saving electric melting 90-degree elbow pipe fitting with the target pipe fitting in an electric melting mode is completed.
The electric heating wire 3 is generally a resistance wire, and after the electric heating wire 3 is electrified, the electric heating wire 3 can generate heat, so that the connecting part of the electric melting elbow pipe fitting body 1 is heated, and the electric melting connection of the energy-saving electric melting 90-degree elbow pipe fitting and a target pipe fitting is completed.
Generally speaking, an electric fusion welding machine plug is connected into a jack of the electric fusion pipe fitting joint assembly 2, and the welding time (FUS 10N) and the cooling time (COOL) calibrated on the energy-saving electric fusion 90-degree elbow pipe fitting are accurately input. Pressing the confirmation key (ASCERTAIN) causes the electrofusion welding machine to display the welding parameters again, and after the confirmation, pressing the START key (START-UP) again to START welding, wherein the electric heating wire 3 STARTs to heat to generate heat, generally speaking, the heating temperature is 230+/-10 ℃. And after the welding process is finished, the electric fusion welding machine can automatically alarm and prompt. By setting the pipe diameter of the electric melting elbow pipe fitting body 1 with the first turning radius of 1.5-2.5 times, the technical effects of reducing energy loss in the working process and improving the strength of the corner are achieved.
In one possible design, the length of the inlet section of the electric melting elbow pipe fitting body 1 is 1-2 times the diameter of the pipe fitting.
In one possible design, the length of the outlet section of the electric melting elbow pipe fitting body 1 is 1-2 times the diameter of the pipe fitting.
Specifically, in order to ensure the stability of water flow at the inlet and the outlet and reduce the influence of other conditions on the electric melting elbow pipe fitting body, the length of the inlet section is set to be 1-2 times of the diameter of the pipe fitting, and the length of the outlet section is 1-2 times of the diameter of the pipe fitting.
In one possible design, the length of the inlet section of the electric melting elbow pipe fitting body 1 is 80 mm-160 mm.
In a possible design, the length of the outlet section of the electric melting elbow pipe fitting body 1 is 80 mm-160 mm.
Specifically, the present application provides a dn63 × 90 ° elbow as an example, and the length of the inlet segment is set to be 80mm to 160mm, and the length of the outlet segment is set to be 80mm to 160mm.
In one possible design, the first turning radius is 1.5 to 2.5 times the pipe diameter.
In one possible design, the electrofusion pipe fitting assembly 2 comprises: a first electrofusion pipe fitting joint assembly 21, said first electrofusion pipe fitting joint assembly 21 being located at an inlet section of said electrofusion elbow pipe fitting body 1.
In one possible design, the electrofusion pipe fitting assembly 2 comprises: a second electrofusion pipe fitting joint assembly 22, said second electrofusion pipe fitting joint assembly 22 being located at an outlet section of said electrofusion elbow pipe fitting body 1.
Specifically speaking, electric smelting pipe fitting joint assembly 2 generally includes two subassemblies, and first subassembly is first electric smelting pipe fitting joint assembly 21, sets up the entry section department of electric smelting elbow pipe fitting body 1 for realize the electric smelting of entry section and target pipe fitting and be connected, the second subassembly is second electric smelting pipe fitting joint assembly 22, sets up the export section department of electric smelting elbow pipe fitting body 1 for realize the electric smelting of export section and target pipe fitting and be connected.
In one possible design, the electrical heating wire 3 comprises: a first electric heating wire 31, wherein the first electric heating wire 31 is positioned at the inlet section of the electric melting elbow pipe fitting body 1.
In one possible design, the electrical heating wire 3 comprises: and a second electric heating wire 32, wherein the second electric heating wire 32 is positioned at the outlet section of the electric melting elbow pipe fitting body 1.
Specifically, first electric heating wire 31 sets up the entry section department of electric smelting elbow pipe fitting body 1 is connected with first electric smelting pipe fitting joint assembly 21, be used for right the heating of electric smelting connection of entry section department of electric smelting elbow pipe fitting body 1, second electric heating wire 32 sets up the exit section department of electric smelting elbow pipe fitting body 1, be used for right the heating of electric smelting connection of exit section department of electric smelting elbow pipe fitting body 1.
The utility model provides an energy-saving electric smelting 90 elbow pipe fittings, energy-saving electric smelting 90 elbow pipe fittings includes: the electric melting elbow pipe fitting comprises an electric melting elbow pipe fitting body, wherein the electric melting elbow pipe fitting body is provided with a first turning radius, and the first turning radius is 1.5-2.5 times of the diameter of the pipe fitting; the electric melting pipe fitting joint assembly is positioned on the electric melting elbow pipe fitting body; the electric heating wire is located on the electric melting elbow pipe fitting body, and the electric heating wire is connected with the electric melting joint component. Through setting for the turning radius of electric smelting elbow, solve among the prior art electric smelting elbow and have energy loss serious at the in-process that carries out work, turn the contained angle stress concentration, technical problem of easy fracture seepage realizes reducing the energy loss of working process, improves the technical effect of the intensity of the contained angle of turning.
Example two
The embodiment provides a method for determining a first turning radius of an energy-saving electric melting 90-degree elbow pipe fitting.
In the application, a dn63x 90-degree elbow is taken as an example, and in order to more accurately probe the local resistance condition in the elbow, the stability of water flow before the inlet and after the outlet needs to be ensured, and the influence of other conditions is avoided, namely the water flow before the inlet and after the outlet of the elbow is ensured to be fully developed. To achieve this, it is necessary to ensure that the lengths of the straight pipe sections before and after the inlet and the outlet of the elbow are sufficiently long. Therefore, the inlet section is 1-2D (80 mm-160 mm), and the outlet section is 1-2D (80 mm-160 mm).
Physical models were created by ICEM in ANSYS software. After a reliable and proper grid is selected, fluent software is required to be led in for numerical simulation, operation is carried out after corresponding setting is finished, calculation is finished after convergence is achieved, a central section is established and static pressure and speed cloud pictures of the central section are checked after calculation is finished, the distribution situation after flow in a pipe is stable can be visually seen, meanwhile, under the condition of the same speed, the overall ranges of five cloud pictures with different turning radii are set to be the same upper limit and the same lower limit, the color representative value of each cloud picture is guaranteed to be the same, and the value can be visually distinguished according to the color. 10 speeds of 0.3, 0.5, 0.8, 1, 1.2, 1.5, 1.8, 2, 2.5 and 3m/s are selected for simulating the flow velocity of water in the pipeline at the time, simulation is carried out in sequence, and cloud pictures at the same speed under five turning radii are displayed according to different speeds.
From the local resistance coefficient map and data table for each speed, the following conclusions can be drawn: for an elbow with the pipe diameter of 63mm, under the conditions of the same speed and different turning radii, the resistance coefficient of the elbow with the turning radius of 2D (2 times of the nominal outer diameter of the pipe fitting) is the minimum, and the resistance coefficients sequentially from small to large are as follows: 2D, 2.5D, 1.5D, 3D, 1D. Meanwhile, under the same turning radius of the same pipe diameter, along with the change of the speed, the change trend of the local resistance coefficient becomes gradually gentle after the speed reaches 0.8m/s, and the change trends of different turning radii under the same speed are basically consistent.
Through tests, when the bending radius of the pipe elbow is determined to be 2 times of the pipe diameter, the resistance coefficient of the pipe is reduced by 15% and the pressure difference is reduced by 10% when the pipe conveys media. Compared with the common electric melting pipe fittings, the energy-saving electric melting elbow pipe fittings with the bending radius of 2 times have 10-15% of drag reduction, the relation between the drag coefficient and the bending radius is shown in figure 2, and a dn63 product is taken as an example: the test results are shown in table 1.
TABLE 1
It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely illustrative of the present application as defined in the accompanying claims, and are to be construed as covering any and all modifications, variations, combinations, or equivalents within the scope of the application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the present application and its equivalent technology, it is intended that the present application include such modifications and variations.
Claims (10)
1. The utility model provides an energy-saving electric smelting 90 elbow pipe fittings, its characterized in that, energy-saving electric smelting 90 elbow pipe fittings includes:
the electric melting elbow pipe fitting comprises an electric melting elbow pipe fitting body, wherein the electric melting elbow pipe fitting body is provided with a first turning radius, and the first turning radius is 1.5-2.5 times of the diameter of the pipe fitting;
the electric melting pipe fitting joint assembly is positioned on the electric melting elbow pipe fitting body;
the electric heating wire is located on the electric melting elbow pipe fitting body, and the electric heating wire is connected with the electric melting joint component.
2. The energy-saving electric melting 90-degree elbow pipe fitting according to claim 1, wherein the length of the inlet section of the electric melting elbow pipe fitting body is 1-2 times the diameter of the pipe fitting.
3. The energy-saving electric melting 90-degree elbow pipe fitting according to claim 1, wherein the length of the outlet section of the electric melting elbow pipe fitting body is 1-2 times the diameter of the pipe fitting.
4. The energy-saving electric smelting 90 ° elbow pipe fitting of claim 1, wherein the inlet section length of the electric smelting elbow pipe fitting body is 80 mm-160 mm.
5. The energy-saving electric smelting 90 ° elbow pipe fitting of claim 1, wherein the outlet section length of the electric smelting elbow pipe fitting body is 80 mm-160 mm.
6. An energy-saving electric smelting 90 ° elbow pipe fitting according to claim 1, wherein the first turning radius is 1.5-2.5 times the diameter of the pipe fitting.
7. An energy efficient electrofusion 90 ° elbow fitting as claimed in claim 1, wherein the electrofusion fitting joint assembly comprises:
a first electrofusion pipe fitting joint assembly located at an inlet section of the electrofusion elbow pipe fitting body.
8. An energy efficient electrofusion 90 ° elbow fitting as claimed in claim 1, wherein the electrofusion fitting joint assembly comprises:
and the second electric melting pipe fitting joint component is positioned at the outlet section of the electric melting elbow pipe fitting body.
9. An energy-saving electric smelting 90 ° elbow fitting according to claim 1, wherein the electric heating wire comprises:
the first electric heating wire is positioned at the inlet section of the electric melting elbow pipe fitting body.
10. An energy-saving electric smelting 90 ° elbow fitting as claimed in claim 1, wherein the electric heating wire comprises:
and the second electric heating wire is positioned at the outlet section of the electric melting elbow pipe fitting body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320061652.0U CN218818839U (en) | 2023-01-10 | 2023-01-10 | Energy-saving electric melting 90-degree elbow pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320061652.0U CN218818839U (en) | 2023-01-10 | 2023-01-10 | Energy-saving electric melting 90-degree elbow pipe fitting |
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| Publication Number | Publication Date |
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| CN218818839U true CN218818839U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320061652.0U Active CN218818839U (en) | 2023-01-10 | 2023-01-10 | Energy-saving electric melting 90-degree elbow pipe fitting |
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| CN (1) | CN218818839U (en) |
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2023
- 2023-01-10 CN CN202320061652.0U patent/CN218818839U/en active Active
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